Fabric-tensioning clamp



Nbv. 4, 1930. M I 1,780,768 I FABRIC TENsIoNIue cLgMi? Filed May 11,1929 Patented Nov. 4, 1930 UNITED STATES PATENT i FF CE i-" ALEXANDER C.PARLINI, OF WOODSIDE, NEW YORK, ASSIGNOB; T0 GOTHAMaSTLK I HOSIERYCOMPANY, INC., OF NEW YORK,

rABnIo-Tmvsmivme CLAMP A Application filed. May 11, 1929. Serial No.362,199; y

This invention relates to fabric tensioning clamps for hosiery knittingmachines and has for its object the provision of a simple and efficientclamp attachment for maintaining the leg portion of a full fashionedknitted stocking under tension while the foot portion is being knittedon the so-called footer knitting machine.

In forming full fashioned stockings the leg fabric is usually knit firston what is known as the legger machine. Thereafter the fabric istransferred to the so-called footer machine for knitting the footportion. In knitting the foot portion onto the leg fabric it isnecessary to keep the fabric under a certain tension as the knittingprogresses. In the art heretofore practised this was commonlyaccomplished by the use of a series of hooks fastened into the fabricandexerting a pull so as to tension the fabric while the same was knitted.On account of the sharp hooks engaging the delicate fabric frequentdamage occurred in either breaking the threads or injuring the same sothat the knit fabric was injured and a defective stocking resultedtherefrom.

It is the object of my invention to replace the so-called footer hooksby my improved fabric tensioning clamp, whereby the fabric is engagedunder uniform pressure without any injury to the fabric itself. Myimproved clamp attachment is moreover so constructed so as to be readilyapplied and the fabric can be quickly adjusted thereon.

A further object of my invention includes the provision of means foreliminating the spreading of stitches in the knitted fabric and inparticular in the instep portion of full fashioned hosiery.

Other objects will appear hereinafter and I obtain these objects by themechanism illustrated in the accompanying drawing in which- Fig. 1 is aplan View of my improved fabric tensioning clamp showing also in brokenlines the position of the knitted fabric;

Fig. 2 is an end view of the clamp Fig. 3 is a section taken on the line3-3 of Fig. 1, and

Fig. 4 is a section taken on the line 14:

a pivot stud 13 '1 ands. A sleeve N. Y., A CORPORATIQN OF DELAWARE ofFig. 1',' ieWe 1 in t emotion Ofthe-ar- I rows. I v 1 Like referencenumerals refer to thesame parts wherever'they occur. I

' In a'preferred form of construction my improved fabric tensioningclamp comprises a base plate 10, of suitable dimensions,- provided withtab hooks 11; for engaging the heel tabs on the knitted fabric. The tabhooks are fastened onto the base plate near the extremities thereofby-suit'able *means, such as screws 12. Intermediate of the tab hooks onthe base plate, there are-mounted latch studQO suitably spaced, Thepivot stud engagesfclamp bar 1 1' by means of apivot pin -15 soas to theclamp bar-to swing freely upon the pivot engages the latchstud 20as-shoWn inFigs. 16 fits loosely onthe clamp bar 14 and is held on thebar by ears 17 This sleeve carries fastened'thereon an eccentric sleeve;18 which; is mounted immediately a I permit 15. ,The opposite endofthe-clamp-ba'r le above the.fabric holding'plate 21. Plate 21 isfastened to the base plate 10 and the eccentric member and the fabricholding plate constitute the clamping means for holding the fabric. Nearone end of the sleeve. 16 there is fastened a hand operated lever 19,whereby sleeve 16 is rotated so as to bring the eccentric clamp 18 tobear upon fabric 25 for holding the same as is shown in Fig. 3.

From the construction of the clamp herein disclosed it will be apparentthat the clamping members rigidly and securely engage the fabric to holdthe same at desired positions and the clamp is readily engagedorreleased by the finger lever 19, while the bar engages the latch stud20. It is further also apparent that plate 21 constitutes one jaw memberand the rotatively held eccentric sleeve 18, the other, and that thelatter jaw member positively closes upon the former when the sleevemember is rotated as by turning the lever 19.

The fabric is taken up by the usual take u j roll 22, which is properlyadjusted and time so as to tension the fabric during the knittingoperation. The clamp device is simple in construction, positive in itsaction and opcrates on the fabric without injury thereto.

, It is obvious to those versed in the art that various minor details ofconstruction will ,siwingably held on one of said studs and en-.

' inj ry the knit fabric suggest themselves and I have illustrated aspecific form of my invention; as an example, whereby to successfullyoperate. inavoiding as outlined above. Having rnow de'seribed myinvention what I claim as new and useful and desireto secure 7 p byLetters Patent is:

' 1. 111 a fabric tensioning clamp for focter attachments, a base platehaving studs" mounted thereon in spaced relation, a bar swingably heldon one of saidst-u-ds-and engaging the other of saidfstuds .at adefinite distance from the base plate, an eccentric sleeve on Said barand means spaced apart 7 from the sleeve to rotate said sleeve aboutsaidan 2. In a fabric tensioning clamp for footer attachments, a baseplate having studs mounted thereonin spaced relation, a bar gagingtheother of sai-dstuds at a definite v distance from, he base plate,asleeve loosely held on said bar and asecond sleeve eccentri ally fi'xedon said first named sleeve and IneanS Pa ed apart from the sleeve torotate 7 said sleeves.

f. 3.1,A fabric tensioning clamp for footer attachments, comprising abase-plate, having tab hooks, studs spaced apart on said base i plate, aclamp bar mounted upon oneof said I studs and engaging the other of saidstuds,

a bar sleeve on said bar, aneccentric sleeve on said-bar sleeve, and"means on said bar sleeveto rotate said bar sleeve on the .bar. I Intestimony whereof I have hereuntoset my hand on this 8th day of'May, A.D1929.

Q ALEXANDER GPARLINI.

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